She took three 'elective' courses last term.
She's taking several 'electives' this year.
Plastic surgery is 'elective' surgery.
(..) Tree, pour what's in the cup out into space and go in the cup again. You speak Groot? Yes, they taught it on Asgard. It was an elective. I am Groot. You'll know when we're close. Nidavellir's forge harnesses the blazing power of a neutron star. (..)2018 Avengers: Infinity War